CA2219200A1 - Filtre apparie programmable, pour un spectre etale - Google Patents

Filtre apparie programmable, pour un spectre etale Download PDF

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Publication number
CA2219200A1
CA2219200A1 CA002219200A CA2219200A CA2219200A1 CA 2219200 A1 CA2219200 A1 CA 2219200A1 CA 002219200 A CA002219200 A CA 002219200A CA 2219200 A CA2219200 A CA 2219200A CA 2219200 A1 CA2219200 A1 CA 2219200A1
Authority
CA
Canada
Prior art keywords
pilot
sequence signal
signal
matched
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002219200A
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English (en)
Inventor
Sorin Davidovici
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Golden Bridge Technology Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2219200A1 publication Critical patent/CA2219200A1/fr
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/221—TPC being performed according to specific parameters taking into account previous information or commands using past power control commands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/226—TPC being performed according to specific parameters taking into account previous information or commands using past references to control power, e.g. look-up-table
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/708—Parallel implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters

Abstract

Un filtre apparié pour un spectre étalé, comprend un générateur de code (43), un filtre apparié programmable en phase (I-PFM) (35), un filtre apparié programmable en quadrature (Q-PMF) (37), un filtre apparié pour trames en phase (I-FMF) (38), un filtre apparié pour trames en quadrature (Q-PMF) (39) et un dispositif de commande (46). Le générateur de codes (43) génère d'une manière alternée des répliques de signaux de séquences d'éléments pilotes ou de signaux de séquences d'éléments de données, qui servent à ajuster les réponses d'impulsions du I-PMF (35) et du Q-PMF (37), qui peuvent ainsi être adaptés pour détecter d'une manière alternée les canaux à spectre large pilotes ou les canaux à spectre large de données. L'I-FMF (38) et le Q-FMF (39) détectent un signal désétalé de séquences de bits pilotes et produisent un signal de corrélation pilote pic utilisé par le dispositif de commande (46) pour déterminer quand changer les réponses d'impulsions des PMFs (35, 37).
CA002219200A 1995-05-25 1996-05-01 Filtre apparie programmable, pour un spectre etale Abandoned CA2219200A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/450,312 US5627855A (en) 1995-05-25 1995-05-25 Programmable two-part matched filter for spread spectrum
US08/450,312 1995-05-25

Publications (1)

Publication Number Publication Date
CA2219200A1 true CA2219200A1 (fr) 1996-11-28

Family

ID=23787593

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002219200A Abandoned CA2219200A1 (fr) 1995-05-25 1996-05-01 Filtre apparie programmable, pour un spectre etale

Country Status (7)

Country Link
US (6) US5627855A (fr)
EP (1) EP0872025A4 (fr)
JP (1) JPH11505983A (fr)
KR (1) KR19990021898A (fr)
AU (1) AU5918696A (fr)
CA (1) CA2219200A1 (fr)
WO (1) WO1996037968A1 (fr)

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US5802102A (en) 1998-09-01
AU5918696A (en) 1996-12-11
EP0872025A4 (fr) 2002-07-24
US5627855A (en) 1997-05-06
EP0872025A1 (fr) 1998-10-21
WO1996037968A1 (fr) 1996-11-28
US6393049B1 (en) 2002-05-21
US5764691A (en) 1998-06-09
US5872808A (en) 1999-02-16
US5999562A (en) 1999-12-07
JPH11505983A (ja) 1999-05-25
KR19990021898A (ko) 1999-03-25

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